Package com.vaadin.flow.shared

Class JsonConstants

java.lang.Object
com.vaadin.flow.shared.JsonConstants
All Implemented Interfaces:
Serializable
public class JsonConstants extends Object implements Serializable
A utility class providing constants for JSON related features.
Since:
1.0
Author:
Vaadin Ltd
See Also:

  • Field Details

    • JSON_CONTENT_TYPE

      public static final String JSON_CONTENT_TYPE
      The content type for JSON requests/responses.
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    • CHANGE_NODE

      public static final String CHANGE_NODE
      Key holding id of the node affected by a change.
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    • CHANGE_TYPE

      public static final String CHANGE_TYPE
      Key holding the type of a change.
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    • CHANGE_TYPE_NOOP

      public static final String CHANGE_TYPE_NOOP
      Change type for empty change (populate the feature on the client side only).
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    • CHANGE_TYPE_ATTACH

      public static final String CHANGE_TYPE_ATTACH
      Change type for attaching nodes.
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    • CHANGE_TYPE_DETACH

      public static final String CHANGE_TYPE_DETACH
      Change type for detaching nodes.
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    • CHANGE_TYPE_SPLICE

      public static final String CHANGE_TYPE_SPLICE
      Change type for list splice changes.
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    • CHANGE_TYPE_PUT

      public static final String CHANGE_TYPE_PUT
      Change type for map put changes.
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    • CHANGE_TYPE_REMOVE

      public static final String CHANGE_TYPE_REMOVE
      Change type for map remove changes.
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    • CHANGE_TYPE_CLEAR

      public static final String CHANGE_TYPE_CLEAR
      Change type for list clear changes.
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    • CHANGE_FEATURE

      public static final String CHANGE_FEATURE
      Key holding the feature of a change.
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    • CHANGE_FEATURE_TYPE

      public static final String CHANGE_FEATURE_TYPE
      Key holding the feature type.
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    • CHANGE_MAP_KEY

      public static final String CHANGE_MAP_KEY
      Key holding the map key of the change.
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    • CHANGE_SPLICE_ADD_NODES

      public static final String CHANGE_SPLICE_ADD_NODES
      Key holding nodes to add for a splice.
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    • CHANGE_SPLICE_ADD

      public static final String CHANGE_SPLICE_ADD
      Key holding values to add for a splice.
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    • CHANGE_SPLICE_REMOVE

      public static final String CHANGE_SPLICE_REMOVE
      Key holding the number of items to remove for a splice.
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    • CHANGE_SPLICE_INDEX

      public static final String CHANGE_SPLICE_INDEX
      Key holding the index of a splice.
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    • CHANGE_PUT_VALUE

      public static final String CHANGE_PUT_VALUE
      Key holding the value of a put change.
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    • CHANGE_PUT_NODE_VALUE

      public static final String CHANGE_PUT_NODE_VALUE
      Key holder the node value of a put change.
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    • RPC_TYPE

      public static final String RPC_TYPE
      Key holding the type in of messages sent from the client.
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    • RPC_TYPE_EVENT

      public static final String RPC_TYPE_EVENT
      Type value for events sent from the client.
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    • RPC_TYPE_NAVIGATION

      public static final String RPC_TYPE_NAVIGATION
      Type value for navigation events from the client.
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    • RPC_NODE

      public static final String RPC_NODE
      Key holding the node in messages sent from the client.
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    • RPC_EVENT_TYPE

      public static final String RPC_EVENT_TYPE
      Key holding the event type in event messages sent from the client.
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    • RPC_TYPE_MAP_SYNC

      public static final String RPC_TYPE_MAP_SYNC
      Type value for model map synchronizations sent from the client.
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    • RPC_EVENT_DATA

      public static final String RPC_EVENT_DATA
      Key holding the event data in event messages sent from the client.
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    • UIDL_KEY_EXECUTE

      public static final String UIDL_KEY_EXECUTE
      Key used for data related to Page.executeJs(String, Serializable...) in UIDL messages.
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    • RPC_FEATURE

      public static final String RPC_FEATURE
      Key used to hold the feature id when synchronizing node values.
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    • RPC_PROPERTY

      public static final String RPC_PROPERTY
      Key used to hold the name of the synchronized property.
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    • RPC_PROPERTY_VALUE

      public static final String RPC_PROPERTY_VALUE
      Key used to hold the value of the synchronized property.
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    • RPC_NAVIGATION_LOCATION

      public static final String RPC_NAVIGATION_LOCATION
      Key used to hold the location in a navigation message.
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    • RPC_NAVIGATION_STATE

      public static final String RPC_NAVIGATION_STATE
      Key used to hold the state in a navigation message.
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    • RPC_PUBLISHED_SERVER_EVENT_HANDLER

      public static final String RPC_PUBLISHED_SERVER_EVENT_HANDLER
      Type value for events sent from the client to an event handler published on the server.
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    • RPC_TEMPLATE_EVENT_METHOD_NAME

      public static final String RPC_TEMPLATE_EVENT_METHOD_NAME
      Key used to hold the server side method name in template event messages sent from the client.
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    • RPC_TEMPLATE_EVENT_ARGS

      public static final String RPC_TEMPLATE_EVENT_ARGS
      Key used to hold the argument values for server side method call.
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    • RPC_TEMPLATE_EVENT_PROMISE

      public static final String RPC_TEMPLATE_EVENT_PROMISE
      Key used to hold the promise id for a server side method call.
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    • RPC_PROMISE_CALLBACK_NAME

      public static final String RPC_PROMISE_CALLBACK_NAME
      Name of the $server property that is used to track pending promises. The name is chosen to avoid conflicts with genuine $server method names.
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    • RPC_ATTACH_EXISTING_ELEMENT

      public static final String RPC_ATTACH_EXISTING_ELEMENT
      Type value for attach existing element server callback.
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    • RPC_ATTACH_EXISTING_ELEMENT_BY_ID

      public static final String RPC_ATTACH_EXISTING_ELEMENT_BY_ID
      Type value for attach existing element server callback.
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    • RPC_ATTACH_REQUESTED_ID

      public static final String RPC_ATTACH_REQUESTED_ID
      Key used to hold requested state node identifier for attach existing element request.
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    • RPC_ATTACH_ASSIGNED_ID

      public static final String RPC_ATTACH_ASSIGNED_ID
      Key used to hold assigned state node identifier for attach existing element request.
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    • RPC_ATTACH_TAG_NAME

      public static final String RPC_ATTACH_TAG_NAME
      Key used to hold tag name for attach existing element request.
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    • RPC_ATTACH_INDEX

      public static final String RPC_ATTACH_INDEX
      Key used to hold index of server side element for attach existing element request.
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    • RPC_ATTACH_ID

      public static final String RPC_ATTACH_ID
      Key used to hold id of the element for attach existing element request.
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    • META_SESSION_EXPIRED

      public static final String META_SESSION_EXPIRED
      Key used when informing the client side that the session has expired.
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    • META_ASYNC

      public static final String META_ASYNC
      Key used when the message is sent asynchronously via push channel.
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    • EVENT_DATA_PHASE

      public static final String EVENT_DATA_PHASE
      Key holding the debounce phase for an event data map from the client.
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    • EVENT_PHASE_LEADING

      public static final String EVENT_PHASE_LEADING
      Character used for representing DebouncePhase.LEADING.
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    • EVENT_PHASE_INTERMEDIATE

      public static final String EVENT_PHASE_INTERMEDIATE
      Character used for representing DebouncePhase.INTERMEDIATE.
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    • EVENT_PHASE_TRAILING

      public static final String EVENT_PHASE_TRAILING
      Character used for representing DebouncePhase.TRAILING.
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    • SYNCHRONIZE_PROPERTY_TOKEN

      public static final String SYNCHRONIZE_PROPERTY_TOKEN
      Token used as an event data expression to represent that properties should be synchronized. The token is chosen to avoid collisions with regular event data expressions by using a character that cannot be the start of a valid JS expression.
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    • MAP_STATE_NODE_EVENT_DATA

      public static final String MAP_STATE_NODE_EVENT_DATA
      Token used as an event data expression or prefix to an event data expression to represent that the state node ID should be fetched for the element, or its closest parent, that corresponds to event.target or the element returned by the evaluated expression.

      The token is chosen to avoid collisions with regular event data expressions by using a character that cannot be the start of a valid JS expression.

      Since:
      9.0
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    • RPC_TYPE_CHANNEL

      public static final String RPC_TYPE_CHANNEL
      RPC type value used for return channel messages.
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    • RPC_CHANNEL

      public static final String RPC_CHANNEL
      Key for the channel id in return channel messages.
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    • RPC_CHANNEL_ARGUMENTS

      public static final String RPC_CHANNEL_ARGUMENTS
      Key for the arguments array in return channel messages.
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  • Constructor Details

    • JsonConstants

      public JsonConstants()